This booklet reveals the simplest secret of holiness and
happiness ever. It shows us how to pray without ceasing and the great power of the Holy Name of Jesus. This little booklet can easily be the
key to obtaining incredible graces and favors from Him both for ourselves and for others.
A personal note that the original booklet is traditionally approved; I saw a footnote I might disregard, so mild caution might be advised with any revisions made to the original text. Otherwise the original text has some interesting ideas.
https://archive.org/details/wonders-of-the-holy-name